This nontoxic deck sealer and water repellent is made from a derivative of soybean oil

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Editor's Review: Bio-based wood sealer

by Justin Fink
review date: November 1, 2007

SoyGuard deck sealer and water repellent is different from most of the petroleum-based stuff on the shelves of the local hardware store (or the shelves in my garage) because it's made with methyl soyate, a derivative of soybean oil. It's nontoxic, nonflammable, biodegradable, and low odor (it smells like cooking oil). It won't deplete the ozone layer, and it cleans up with soap and water. Despite being as docile as a puppy, though, SoyGuard deck sealer and water repellent still manages to protect wood against swelling, warping, cracking, and checking for up to two years.